1.31 Products for senior citizens.
The market for products designed for senior citizens in the United States is expanding. Here is a stemplot of the percents of residents aged 65 and older in the 50 states for 2012 as estimated by the U.S. Census Bureau American Community Survey.15 The stems are whole percents, and the leaves are tenths of a percent. Describe the shape, center, and spread of this distribution.
us65
| 8 | 5 |
| 9 | 5 |
| 10 | 9 |
| 11 | 58 |
| 12 | 1 |
| 13 | 00000222566788 |
| 14 | 0111134455567778889 |
| 15 | 0113478 |
| 16 | 08 |
| 17 | 0 |
| 18 | 2 |
1.31
The shape is symmetric, the center is around 14. The range is between 8.5 and 18.2.